Safety razor



Sept. 25, 1951 J. T. HELLMANN 2,569,167

SAFETY RAZOR Filed Aug. ze, 1948 2 sheets-sheet 1 INVENTOR.

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Sept. 25, 1951 J. T HELLMANN 2,569,167

SAFETY RAZOR v Filed Aug. 26, 1.948 2 Sheets--Sheeil 2 Y ITO. l. l )YcleyZHe//m/z, j J0 E" ATTO R N EYS j blade holder.

Patented Sept. 25, 1951 UNITED STATES PATENT OFFICE "SAFETY RAZOR Jayrnelimann, chicago, 1u. Application August 26, 1948, Serial No. 46,290

My present invention relates to improvements in safety razors in thebroad class of cutlery, and it involves certain novel features of con--struction and combinations and arrangements of parts as will hereinafterbe described, and more particularly set forth in theappended claims.

' By the embodiment of my invention as illustrated in the drawings theseparable parts of the device may, with facility vand low cost ofproduction, be

manufactured, and assembled with convenience,

to provide a razor with superior cutting qualities;

the parts may readily be clamped together for use, and with equalfacility they may be partially separated for cleansing and drying; aswell as for changing blades when necessary.

In the accompanying drawings I have illus- .-trated a complete exampleof a physical embodi- Ament-of my invention in which the parts arecombined and arranged in accord with one mode Ihave devised for thepractical application of the principles of my invention. It will howeverbe understood that changes and alterations are contemplated and may bemadev in these exemplifying drawings and mechanical structures, withinthe scope of my claims without departing from! the principles of theinvention.

y n Figure l is a view in elevation of a safety razor f Figure 5 is asectional view showngthe guard plate unclarnped to release the blade andpermit removal of the blade.

Figures 6 and 7 are sectional views at lines B-G and 'I--1 of Fig. 2.

Figure 8 is a detail perspective view of the guard plate.

Figure 9 is an inverted perspective view of the v.guard plate; andFigure 10 is a top plan of the central portion of the guard plate.

Figure l1 ,is a perspective view of the spring Figure 12 is aperspective view of the handle sleeve.`

Figure 13 is a perspective view of the clamp plate or clamp head; andFigure 14 is a perspective view of the handle.

In the preferred form of the invention, the handle includes a screw baror handle I having an enlarged knob 2, and a tubular member or grippingsleeve 3 mounted on the bar and pro- 3 Claims. (Cl. SOI-73) vided withleft hand screw threads 4. The clamping block, head, or plate 5 for theblade B is fashioned with plane faces disposed at an obtuse angle topermit facile strokes of the razor, and a lpost 6 angular in crosssection and integral with the clamp head, is threaded at 'I into theupperv tubular end ofthe handie -bar with right ,hand threads that areinstrumental in drawing the headinto clamped position over the blade.

Q At its lateral edges, the clamp head is reduced to forrncomparativelythin lips 8, 8 that project over the cutting edges of the blade B, andthe head is provided with spaced holes 9, 9, near Vits ends, to guideand seat various parts into working position and to release the parts.

The blade B is clamped between the' clamp head and its lips and a guardplate indicated as a whole by the letter G, and the guard plate isvfashioned with an integral tubular stem I0 that is externally threadedto provide a right hand threaded engagement at II with the internallythreaded upper end of the clamping sleeve 3 'of -the handle.

As seen' in Fig. 8 the guard plate G is fashioned with a central angularbore I3 that ts over the post 6 of the clamp head, and two spaced oblongslots I 4, I4 in its under face are connected by grooves I5 that extendfrom the tubular stem to the Vrespective slots.

yAlong its lateral portions, the guard plate is stepped down to itsguarding edges, and for this purpose two parallel ledges I6 of theplateare fashioned with notches or lugs and grooves to form the guardteeth I'I extending from end to endl of the guard plate, and anadditional step or vledge I8 isfashioned on the teeth I'I, except forthepair of end teethat the opposite sides of the V plate'and againstwhich the lips 8, 8, bear, resiliently. By this construction andarrangement of` partsfthe lips 8 clamp the cutting edges ofthe `.bladeagainst the stepped ledge and teeth of the guard plateto provide thenecessary clearance forthe cutting edges at the tip edges of thevstepped teeth.

. For guiding andretaining the blade in accurately adjusted position aspring blade holderis provided as bestshown in Fig. 11 that includes asplit resilient, friction clamp-sleeve I9, having resilient tongues 20struck from its walls, which has a sliding iit over the upper internallythreaded end' of the handle bar I. The clamp sleeve is fashioned with apair of spaced diametrically arranged angle or L-shaped arms 2|, flat incross section, the upright portions of which nt into complementarygrooves A, A in the exterior face of the tubular stem I0, and thehorizontal portions of the arms fit into the grooves I5, I5 in the underface of the guard plate.

The angular, spring arms 2| terminate in angular heads 22 that projectinto the slots I4 of the guard plate, and the heads are provided withusual studs or pins 23 that project upwardly through the usual spacedholes of the blade B and into the sockets or holes .9, 9 of the clamphead.

In Figs. 1 and 2, the blade is clamped in operative position by firstturning the handle bar `suo that the right hand threads 'I pull theblade with the head and guard plate into position s`' that the sleeve Imay be turned to pull the holder and ing, the parts may be turned toposition of Fig'4 Where they are separated, and then swung to and frothrough the shaving water to remove soap 'and accumulated hairs, afterwhich the parts inay be dried in suitable manner, and then retored toshaving position.

For changing blades, the head is first unthreaded from the handle barand withdrawn f romthe blade and guard plate, as indicated in Fig. 5, sothat the used blade may be lifted from the holder, and a fresh blade maybe applied thereto, after which the parts are screwed together forclaniping the blade in shaving position.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is: e 1. In a safety razor as described, thecombination with a clamping head provided with holes, and a postpolygonal in cross section, a guard plate having a tubular stem rigidwith the post and longitudinally extending exterior grooves in saidstein, said guard plate having spaced slots, and exterior grooves in itsunder face, of a blade provided with holes, and a blade holder, saidholder having a resilient clamp sleeve surround- `the tubular stem, apair of angular and re- Asilient arms rigid with the clamp sleeveandengaged in the groovesV of the tubular Stern and guard plate, angularheads on said arns projecting into the slots of the guard plate,retaining "studs on said angular heads projelting 'through holesin theblade and clamping head, a handle borv threaded on the post, and ahandle sleeve threaded on the bar for clamping the 're- "silient sleeve.Y

2. In a safety razor, Ythe combination which Y onprises a ra'z'or headhaving a polygonal post extended from thefce'nter of the under ilffapethereof With thlea'so the extended ed 0`f the `post and with openings intho` said dead and spaced from the ends thereof, a handle having a sternwith ahnge'r gripping knob on one end, a threaded socket in the oppositeendvand threads on the outer siirface positioned with the threadedsocket thereof threaded on the threads of the kend of the post, a guard'plate having a tubular the head, said stem of the guard plate havingthreads on the end thereof extended from the plate, said guard platehaving notches therein spaced from the ends and positioned to registerwith the said openings spaced from the ends' of the head. a grippingsleeve having spaced threads therein positioned over the stem of thehandle and extended over the threads of the tubular stern of the saidguard plate, and a clamp sleeve' positioned on the stem of the handleand having L-"shaped spring arms with studs on exl tended ends thereofmounted with the said spring arms under the said guard plate andpositioned whereby the said studs extend into the slots of theguardplate and openings of the head for positioning and retaining razorblades between the guard plate and head.

3. In a safety razor, the combination which oniprises a razor headhaving a polygonal post extended from the center of the under surfacethereof with threads on the extended end of the post and with openingsin the said head and spaced from the ends thereof, a handle having as'tern with a finger gripping knob on one end, a threaded socket in theopposite end and threads on the outer surface positioned with thethreaded socket thereof threaded on the threads of the end of the post,a guard plate having a tubular stern nested under the head andpositioned with the tubular stem thereof fitted over the po'st of thehead, said stem of the guard plate having threads' on the end thereofextended from the plate, said guard plate having notches therein spacedfrom the ends and positioned to register with the said openings spacedfrom the ends of the head, a gripping sleeve having spaced threadstherein positioned over the stem of the handle and extended over thethreads of the tubular stem o'f the said guard plate, and a clamp sleevepositioned on the stem of the handle and having Lshaped spring arms withstuds on extended ends thereof mounted with the said spring arms underthe saidv guard plate and positioned whereby the said studs extend intothe slots of the guard plate and openings of the head for positioningand retaining razor blades between the y guard plate and head, the undersurface of the said guard plate having longitudinally disposed slots'therein positioned to receive outwardly extended sections of the saidL-shaped spring arms and the threads on the end of the tubular stem ofthe guard plate also having slots extended therethrough and said slotsof the threads of the tubular stem being positioned to receive the saidL-shaped spring arms.

JAY T. HELLMANN.

REFERENCES CITED The following references are of record in the iile ofthis patent:

UNITED STATES PATENTS vNumber Name Date 1,562,445 GaSman NOV. 24, 19251,664,279 Aguilar Mal'. 27, 1928 1,756,224 Theodoropulos Apr. 29, 19301,981,773 Black NOV. 20, 1934

